Army Air Corps chose Offutt Field as the site for a new bomber plant that was to be operated by the Glenn L. Martin Company. The plant's construction included a two-mile (3.2 km)-long concrete runway, six large hangars, and a 1700000 sqft aircraft-assembly building.

Production switched to B-29 Superfortress very heavy bombers in 1944, and 531 Superfortresses were produced before the end of World War II.